856  INDEX    TO    PUBLICATIONS    OF    U.    S.    GEOL.    SURVEY,      [bill.  177. 
Yakucat  Bay,  Alaska,  coal  at Ann  17,  i,  p  784 
Yale  (C.  G. ),  borax MR  1889-90,  pp  494-506 
iron  on  Pacific  coast MR  1883-84,  pp  286-290;  MR  1885,  pp  196-199 
minor  minerals  of  Pacific  coast MR  1882,  pp  662-663 
Yampa  and  White  rivers,  Colorado,  reconnaissance  on Ann  20,  iv,  pp  383-387 
Yarmouth  soil  and  weathered  zone Mon  xxxviii,  pp  119-124 
Yellow  River,  Georgia,  flow  of,  measurements  of Ann  19, 
iv,  pp  229-230;   Ann  21,  iv,  pp  137-138;  WS 
15,  p  43;  WS  27,  pp  31-32;  WS  36,  pp  134-135 
water  powers  on Ann  20,  iv,  p  166 
Yellowstone  formation  of  Montana GF  56,  pp  2-3 
Yellowstone  Lake,  altitude,  area,  discharge,  etc. ,  of Ann  9,  p  93 
Yellowstone  National  Park,  geologic  and  paleontologic  investigations  in Ann  5, 
pp  15-18;  Ann  6,  pp  54-58;  Ann  7,  pp  87-89; 
Ann  8,  i,  pp  149-151;  Ann  9,  pp  91-94,  128-129; 
Ann  10,  i,  pp  23-25,  132-136,  169-170;  Ann  11,  i, 
pp  83-85;  Ann  12,  i,  pp  56,  94;  Ann  21,  i,  p  80 
geologic  maps  of,  listed . Bull  7,  p  169 
(See  Map,  geologic,  of  Wyoming.) 
geology  of GF  30 
geology,  petrography,  and  paleontology  of Mon  xxxn,  n 
hot  springs  and  geysers  of Ann  9,  pp  628-672 
maintenance  of,  reasons  for Ann  5,  pp  17-18 
Obsidian  Cliff Ann  7,  pp  249-295 
report  on,  by  Director  Walcott,  concerning  roads,  protection,  etc Ann  19, 
i,  pp  56-59 
scorodite  from Bull  55,  pp  65-66 
topographic  maps  of.     (See  Map,  topographic,  of  Wyoming.) 
topographic  work  in Ann  5,  pp  9-10; 
Ann  6,  pp  14-15;  Ann  7,  p  57;  Ann  9,  p  60 
travertine  and  siliceous  sinter,  formation  of,  by  vegetation  of  hot  springs..  Ann 
9,  pp  613-676 
triangulation  in Bull  122,  pp  300,  301 
Yellowstone  Park  Forest  Reserve,  limits,  timber,  etc. ,  of Ann  19, 
v,  pp  54-56,  213-216 
Yellowstone  River,  flow  of,  measurements  of.  .Ann  11,  n,  pp  93,  107;  Ann  12,  n,  pp  236, 
347,  360;  Ann  13,  in,  pp  66,  93,  98,  Ann  14,  n,  pp  104-105 
glaciation  of  valley  of Bull  104 
hydrography  of  basin  of Ann  11 ,  n,  pp  36-38,  93,  107 ; 
Ann  12,  n,  pp  236-238;  Ann  13,  in,  pp  63-73 
profile  of WS  44,  pp  76-77 
stream  measurements  in  basin  of Ann  18,  iv,  pp  136-141 ; 
Ann  19,  iv,  pp  287-300;  Ann  20,  iv,  pp  246-251;  Ann 
20,  iv,  pp  190-192;  Bull  131,  pp  26-27;  WS  11,  pp  49-50; 
WS  15,  pp  74-80;  WS  27,  pp  73-74,  76;  WS  37,  pp  210-211 
Yentna  beds  of  Alaska,  southwestern,  notes  on Ann  20,  vn,  pp  172,  183,  187 
Yentna  River,  Alaska,  itinerary  of  reconnaissance  along Ann  20,  vn,  pp  46-48 
Yogo,  Montana,  mines  at,  notes  on Ann  20,  in,  pp  447-450 
sapphire  mines  at,  description  of Ann  20,  in,  pp  454-459,  552-556 
Yogo  district,  Montana,  geology  of Ann  20,  in,  pp  317-335 
Yogo  limestone  of  Montana GF  55,  p  2;  GF  56,  p  2 
of  Montana,  description  and  sections  of Ann  20, 
in,  pp  286,  328,  329,  339,  363,  368 
Yogo  Peak,  Montana,  rocks  of,  variation  in  mineral  composition  of Ann  20, 
in,  pp  567-568 
